Pest Plants

Mexican Petunia-invasive?

Q: I see clumps of tall blue flowers called Mexican petunia in my neighborhood. Everyone tells me that they are very invasive and spread rapidly. Are they really that invasive? A: Tall Mexican petunia, Ruellia brittoniana, isn’t invasive like bamboo...

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Kudzu Covering Things

I’m not ashamed to admit that I sometimes find kudzu attractive. Like snow, the vine covers everything in a monochromatic moonscape. Below are some of my favorites. Also see: Kudzu Control Email me your interesting kudzu...

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Butterfly Bush – Invasive or Not

Q: On your website you write that butterfly bush is a good plant to attract butterflies. While that is true, the Georgia Department of Agriculture says butterfly bush is showing signs of becoming invasive. A: I know that other states...

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If Goats Eat Poison Ivy Is The Milk Safe? 

Q: If goats eat poison ivy is the milk safe to drink?  A: Goats enjoy poison ivy foliage very much. As with dogs and cats, if the goats brush against a vine you can get a rash after petting them....

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How To Control Weeds That Are Growing In Liriope? 

Q: How do you control weeds that are growing in liriope?  A: For a small area, hand weeding is your best option. There will be a few holes where you remove weeds but the liriope will quickly fill in. If...

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Purslane – Control

Common purslane, Portulaca oleracea, is a weedy summer annual, invading vegetable gardens, bare areas, low-maintenance lawns, and ornamental plantings. It is particularly well adapted to the warm, moist conditions found in Georgia. Common purslane is edible, with a sweet, yet...

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Wild Strawberry (Indian Mock Strawberry) – Identification

Indian mock strawberry, Potentilla indica, is a non-native weed only slightly related to “real” strawberry. It’s flowers are yellow while those of edible strawberry are white or pink. The fruit of mock strawberry is not poisonous but the taste is...

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Wild Lettuce (Prickly Lettuce) – Control

It looks like dandelion leaves at first…..but it makes a tall stem. What could this be? It’s wild lettuce…..and it’s edible! You can dig the long taproot with a dandelion fork (click for sources)  or uproot it with a Water...

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Sowthistle – Control

The spiny leaves make this weed easy to spot. Fortunately, spiny sowthistle is easy to control. You can dig the long taproot with a dandelion fork (click for sources)  or uproot it with a Water Weeder. A spot spray of...

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Poison Ivy Oil – How Long is it Potent?

Copied from http://mailman.cloudnet.com/pipermail/compost/2000-April/006688.html A couple of weeks ago, Sharon Barnes asked a question on this listserv about the fate of poison ivy during composting. I found the question intriquing so I decided to use it for the BioCycle Q&A column....

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FIVE STRATEGIES FOR WEED CONTROL

My friend Daryl Pulis and I share a common passion. We enjoy learning more about odd and uncommon plants and sleuthing out practical information about them. When the rare amorphophallus bloomed at the Atlanta Botanical Garden, Daryl posted breathless accounts...

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Bradford Pear – Wildly Sprouting Thorny Bushes

Curtis Young , editor, and other contributors to the Buckeye Yard and Garden Line have shed light on why there are so many thorny sprouts of wild pear showing up unwanted every year. “One of the certainties of education is...

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Wild Onion vs Wild Garlic – Control Tips

Q: How do I tell the difference between wild onion and wild garlic? A: Like edible onions and garlic, wild onion, Allium canadense, and wild garlic, Allium vineale, are members of the onion family. While both have thin, green, waxy...

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Microstegium (Basketgrass, Stiltgrass) – New Disease for Possible Control

Microstegium is a terribly invasive grass in shady gardens. The great news is that researchers have identified a disease that has potential to control it! News release: In 2009, a previously undescribed disease was found on the nonnative invasive annual...

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Microstegium (Basketgrass, Stiltgrass, Eulalia) – Identification and Control

This grassy weed is common but it doesn’t yet have a widely accepted common name. Most gardeners refer to it as “That summer weed that I can easily pull out by huge handfuls but it still comes back!” Eulalia grass...

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Poison Ivy – Control

My neighbor and I acted as if we were surrounded by rattlesnakes. “Ease your foot down there, slowly…slowly. Now take a quick step to the right and hop up onto that cinderblock!” We were curious about the land clearing that’s...

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Poison Ivy – Herbicides

Several herbicides will kill poison ivy. Triclopyr (Brush-B-Gon) kills kudzu and brambles as well as poison ivy. Non-selective weed killers like Round-Up, Finale or Next Day will kill poison ivy, too. With care, spot spraying can take the offending vines...

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Wisteria – Control

Its flowers are gorgeous but the nature of a wisteria vine is to conquer everything around it. Cascades of lavender or white blooms announce that the vine has woken up after a winter nap and is poised to start climbing...

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